<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <title>bouncing ball</title>
  <style type="text/css">
    html, body {
      margin: 0;
    }
    #myCanvas {
      margin: 0;
      padding: 0;
      overflow: hidden;
      display: block;
      /*background: url('images/bg.png');
      background-repeat: no-repeat;
      background-size: 100% 100%;*/
    }
  </style>
</head>
<body>
  <canvas id="myCanvas"></canvas>
  <script src="js/index.js" type="text/javascript"></script>
</body>
</html>
